v3.26.1
Future Policy Benefits and Claims - Retirement and Income Solutions (Details) - Retirement and Income Solutions - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Pension risk transfer    
Present value of expected future policy benefit payments    
Balance at beginning of period, Present value of expected future policy benefit payments $ 27,349.3 $ 24,958.1
Effect of changes in discount rate assumptions at beginning of period 1,294.3 1,938.8
Balance at beginning of period at original discount rate 28,643.6 26,896.9
Effect of actual variances from expected experience (1.0) (17.9)
Adjusted beginning of period balance at original discount rate 28,642.6 26,879.0
Interest accrual 650.6 1,234.2
Benefit payments (1,282.4) (2,442.8)
Issuances 654.2 2,973.2
Balance at end of period at original discount rate 28,665.0 28,643.6
Effect of changes in discount rate assumptions at end of period (1,666.0) (1,294.3)
Balance at end of period, Present value of expected future policy benefit payments 26,999.0 27,349.3
Future policy benefits after reinsurance $ 26,999.0 $ 27,349.3
Weighted-average duration for future policy benefits (in years) 7 years 10 months 24 days 7 years 10 months 24 days
Individual fixed income annuities    
Present value of expected future policy benefit payments    
Balance at beginning of period, Present value of expected future policy benefit payments $ 4,367.4 $ 4,504.6
Effect of changes in discount rate assumptions at beginning of period 297.6 420.4
Balance at beginning of period at original discount rate 4,665.0 4,925.0
Effect of actual variances from expected experience 1.9 2.3
Adjusted beginning of period balance at original discount rate 4,666.9 4,927.3
Interest accrual 94.6 197.2
Benefit payments (242.2) (490.0)
Issuances 11.8 30.5
Balance at end of period at original discount rate 4,531.1 4,665.0
Effect of changes in discount rate assumptions at end of period (350.7) (297.6)
Balance at end of period, Present value of expected future policy benefit payments 4,180.4 4,367.4
Reinsurance impact (4,118.1) (4,310.3)
Future policy benefits after reinsurance $ 62.3 $ 57.1
Weighted-average duration for future policy benefits (in years) 7 years 7 years 1 month 6 days